EN 61000-2-2 Electromagnetic compatibility

Electromagnetic compatibility (EMC) - Part 2-2: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems

In EN 61000-2-2:2019-06 the following changes have been made:

  • Addition of Note 2 in section 1 "Scope";
  • Correction in the paragraph before Equation 4.2 that the long-term flicker intensity is derived from the Pst values (and not from the Plt values) for 12 consecutive 10-minute intervals; this correction also applies to EN 61000-2-2:2019-06;
  • Addition in 4.2 that in some cases it is necessary to dig can be to use the numerical values for points on the curves in Figure 1, and a reference to the new Table E.1;
  • Addition of Table 4 with compatibility levels for the frequency range from 30 kHz to 150 kHz, and Reference to Annex D in 4.12.3;
  • addition of Annex D;
  • addition of Annex E;
  • addition of CISPR 15 in the literature references.

This standard is identical with the International Standard IEC 61000-2-2 and its amendments of June 2017 and May 2018, and contains specifications for compatibility levels for low-frequency conducted disturbance variables and for signals from network communication systems in public low-voltage power supply networks. Compatibility levels with their characteristic of agreed values can be used for the EMC coordination of emission and immunity requirements for equipment and as planning levels for power supply networks.

Their function and the relationship between them as well as the limits of interference emission, the limits of immunity and the limits set by The planning levels used by electricity undertakings for network planning purposes are explained in Annex A to this standard. The standard considers the following phenomena:

  • Voltage fluctuations and flicker;
  • harmonics up to the 40th harmonic order;
  • voltage distortions at frequencies above the 40th harmonic order;
  • voltage dips and short interruptions of the supply voltage;
  • voltage unbalance;
  • transient over-voltages;
  • temporary fluctuations of the mains frequency;
  • DC components and disturbance variables from signal transmission on low-voltage electrical lines

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